Advertisements
Advertisements
Question
Give the results of Rutherford alpha scattering experiment.
Advertisements
Solution
- Most of the alpha particles are undeflected through the gold foil and went straight.
- Some of the alpha particles are deflected through a small angle.
- A few alpha particles (one in thousand) are deflected through an angle more than 90°.
- Very few alpha particles returned back (back scattered) -that is, deflected back by 180°.
APPEARS IN
RELATED QUESTIONS
Splitting of spectral lines in an electric field is called __________.
According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?
The ratio of the wavelengths for the transition from n =2 to n = 1 in Li++, He+ and H is ______.
The electric potential between a proton and an electron is given by V = V0 In `("r"/"r"_0)`, where r0 is a constant. Assume that Bohr atom model is applicable to potential, then a variation of radius of nth orbit rn with the principal quantum number n is
What is meant by excitation energy?
Write down the draw backs of the Bohr atom model.
What is distance of closest approach?
Define impact parameter.
Discuss the spectral series of hydrogen atom.
- A hydrogen atom is excited by radiation of wavelength 97.5 nm. Find the principal quantum number of the excited state.
- Show that the total number of lines in emission spectrum is `("n"("n - 1"))/2`.
Compute the total number of possible lines in emission spectrum as given in(a).
